[1] Trouble Ticket System
[2] TeleTypeSetting (->"IEEE Standard Dictionary")
[3] Temporary Threshold Shift (->"IEEE Standard Dictionary")
[4] Transistor-Transistor-logic Schottky barrier (->"IEEE Standard Dictionary")
[5] Transmission Test Set (->"IEEE Standard Dictionary")
[6] Transaction Tracking System
[7] Tsaratanana, Madagascar - internationale Fughafen-Kennung